Eucalyptus camaldulensis is a tree growing 15 to 25 meters or taller, with an ash-colored, smooth, and exfoliating bark. Leaves are deciduous, alternate, lanceolate, acuminate, light green and thin. Inflorescences are axillary, simple, umbels are 5 to 11-flowered; peduncle is 1 to 1.5 centimeters, slender and terete. Flower buds are ovoid, 5 to 8 millimeters. Hypanthium is semiglobose, about 3 millimeters; stipes are 3 to 12 millimeters. Flowers are in umbels. Capsule is subglobose, 5 to 6 millimeters in diameter, disk broad, valves 3 to 5, exserted from the hypanthium.
– Native to Australia where it is widespread.
– Cultivated in many parts of the world.
– Phytochemical screening yielded saponin, saponin glycosides, steroid, cardiac glycoside, tannins, volatile oils, phenols, and balsam (gum).
– Study yielded tannins, saponins and cardenolides.
Medicinal Properties of red gum eucalyptus
– Antibacterial, vulnerary.
– Essential oil considered anti-tubercular.
Folkloric traditional medicine benefits, uses and remedies with red gum eucalyptus
– In Nigeria, decoction of leaves used to treat gastrointestinal disorders.
– Decoction of leaves used for sore throat and other bacterial infections of the respiratory and urinary tracts.
– Poultice of leaves applied over wound used for catarrh and nasal congestion.
– Essential oils used for treatment of lung diseases and tuberculosis.
– Volatile oils used as expectorant and cough stimulant.
Scientific proven health uses and benefits of red gum eucalyptus
Methanolic extract of leaves of E. camaldulensis and Terminalia catappa were evaluated for in vitro microbial activities. Both inhibited the growth of Bacillus subtilis and Staphylococcus aureus, with no inhibitory activity on P. aeruginosa, S. typhi, and E. coli. Crude extracts of E. camadulensis inhibited Candida albicans.
In a study of antibacterial activity of leaf extracts, the methanol extract, dichlormethane fraction and methanol residue exhibited broad spectrum activity against all test organisms, viz., Klebsiella spp, S. typhi, Yersinia enterocolitica, P aeruginosa, S aureus and B subtilis.
Study of E. camadulensis and E. torelliana showed anti-H. pylori activities which were attributed to their chemical constituents.
• Antiulcer / Gastroprotective:
In animal studies, E. camaldulensis and E. torelliana are reported to decrease gastric acid production, with benefits for the treatment of gastric ulcer.
Study evaluated the anti-tubercular activities of extracts of E. camaldulensis and E. torelliana. The extracts inhibited the growth of MtbH37Rv. Results suggest the presence of anti-Mtb active compounds in the plants and presents a potential for the development of new and effective anti-Mtb drugs
• Antibacterial / Dental Caries / Plaque:
In an in vitro study that examined dental biofilm production of Streptococcus mutans, the primary cause of dental caries, with various concentrations of Mentha spicata oil, Eucalyptus camaldulensis oil, and chlorhexidine, EO demonstrated a superior ability. In an in vivo 4-week study on plaque formation, EO at all concentrations had significant more inhibition compared to M. spicata and chlorhexidne
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